Active Power Transmitter WM500

Item number: WM500ff

Versions with and without compensating circuits
Variants for: power supply system 1-or 3-phase; measuring voltage 100/110/230/400 or 440VAC; measuring current 1 or 5AAC; supply voltage 230VAC or 24VDC

Category: Measuring Transducers


starting from 381,99 €

including 19% VAT.

Exp. shipping time: ca. 1-2 weeks

There are variations of this item. Please select the variation you wish.


Active Power Transmitter WM500

The active power transmitter WM 500 converts active power of symmetric 1-3 phase power supply systems into proportional industry standard signals. There are two versions available. Devices without compensating circuits can be used to measure active power of phase-angled controlled equipments or electric motor drives controlled by frequency inverters. Devices with integrated compensating circuit (only for sinusoidal voltage) compensate errors which depend on different deviations from line voltages to nominal voltages.  Both versions work with any curve shape variations of the measuring current. 

Please select if you want the article with or without compensating circuit when ordering. 
Furthermore we need the following indications from you:
Power supply system: 1-phase or 3-phase
Measuring voltage: 100/110/ 230/400 or 440VAC
Measuring current: 1 or 5AAC
Supply voltage: 230VAC or 24VDC

Technical data:
Supply voltage: 230VAC ±10% or 24VDC ±15%
Frequency AC: 47...63Hz
Power consumption: < 3VA
Operating temperature: -20...+50°C
CE-conformity: EN 55022, EN 60555, IEC 61000-4-4/5

Current: 0...1A: Ri=82mOhm, over load 2-times, 4-times for max. 5s
             0...5A: Ri=10mOhm, over load 2-times, 4-times for max. 5s
Frequency range: 45...400Hz, Crest- Faktor: 3
Curve shape: insignificant
Voltage: 0...440V, Ri=3.4KOhm/V, over load max. 700V
Frequency range: 45...400Hz
Curve shape: insignificant, without compensating circuit 
Curve shape: sinusoidal, with compensating circuit
End value: adjustable, -30% to +5% for factory default

Current: 0/4...20mA, selectable, burden <= 500 Ohm
Burden error: <0.1% (RL= 0...200 Ohm)
                     <0.2% (RL= 0...500 Ohm)
Voltage: 0/2...10V selectabler, burden  max. 10mA
Adjustment: P = U x I x square root of 3 x cos phi = 20mA (10V) with cos phi = 1
Basic accuracy: <0.2%
Rise time (T90): <500ms

Design: Polycarbonate, UL 94 V-0;  TS35 according to DIN EN 60715:2001-09
Weight: ca. 200g
Connection: screw terminals, max. 2.5mm²
Protection class: case: IP30, terminals: IP20 according to BGV A3


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